Some critics found the series flawed. The South China Morning Post gave it 2/5 stars, calling the first episode "one of the worst hours of TV this year" while acknowledging that "things do improve—slightly". Other reviewers noted issues with pacing, pointing out that some scientific concepts are handled loosely and that the eight-episode run, while compelling, feels "incredibly spare" compared to traditional K-drama storytelling. Others felt the horror elements and the "science part in 'science fiction'" could have been more tightly integrated.
: Environmental collapse, resource scarcity, corporate secrecy, ethical boundaries in science, and the survival instinct of humanity. Decoding the Technical Specifications Vegamovies.NL.The.Silent.Sea.S01.E01-08.1080p.N...
: The show excels at building a claustrophobic, "dead space" atmosphere on the moon. The production design of the lunar base is highly detailed and immersive. Some critics found the series flawed
| Actor | Character | Role | |-------|-----------|------| | Bae Doona | Song Ji-An | Astrobiologist seeking truth about her sister's death | | Gong Yoo | Han Yun-Jae | Mission captain, pragmatic and duty-driven | | Lee Joon | Ryu Tae-Suk | Senior researcher with hidden motives | | Kim Sun-young | Dr. Hong Ga-Young | Chief medical officer | | Lee Moo-saeng | Gong Soo-Chan | Team engineer | | Lee Sung-wook | Kim Jae-Sun | Security expert | Others felt the horror elements and the "science